akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1 | /* |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 2 | em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB video capture devices |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 3 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 4 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> |
| 5 | Markus Rechberger <mrechberger@gmail.com> |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 6 | Mauro Carvalho Chehab <mchehab@brturbo.com.br> |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 7 | Sascha Sommer <saschasommer@freenet.de> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #include <linux/init.h> |
| 25 | #include <linux/list.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/usb.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 29 | #include <linux/i2c.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 30 | #include <linux/video_decoder.h> |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 31 | #include <linux/utsname.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 32 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 33 | #include "em28xx.h" |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 34 | #include <media/tuner.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 35 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 36 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
| 37 | "Markus Rechberger <mrechberger@gmail.com>, " \ |
| 38 | "Mauro Carvalho Chehab <mchehab@brturbo.com.br>, " \ |
| 39 | "Sascha Sommer <saschasommer@freenet.de>" |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 40 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 41 | #define DRIVER_NAME "em28xx" |
| 42 | #define DRIVER_DESC "Empia em28xx based USB video device driver" |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 43 | #define EM28XX_VERSION_CODE KERNEL_VERSION(0, 0, 1) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 44 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 45 | #define em28xx_videodbg(fmt, arg...) do {\ |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 46 | if (video_debug) \ |
| 47 | printk(KERN_INFO "%s %s :"fmt, \ |
| 48 | dev->name, __FUNCTION__ , ##arg); } while (0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 49 | |
| 50 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 51 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 52 | MODULE_LICENSE("GPL"); |
| 53 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 54 | static LIST_HEAD(em28xx_devlist); |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 55 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 56 | static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 57 | |
| 58 | module_param_array(card, int, NULL, 0444); |
| 59 | MODULE_PARM_DESC(card,"card type"); |
| 60 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 61 | static int tuner = -1; |
| 62 | module_param(tuner, int, 0444); |
| 63 | MODULE_PARM_DESC(tuner, "tuner type"); |
| 64 | |
| 65 | static unsigned int video_debug = 0; |
| 66 | module_param(video_debug,int,0644); |
| 67 | MODULE_PARM_DESC(video_debug,"enable debug messages [video]"); |
| 68 | |
| 69 | /* supported tv norms */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 70 | static struct em28xx_tvnorm tvnorms[] = { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 71 | { |
| 72 | .name = "PAL", |
| 73 | .id = V4L2_STD_PAL, |
| 74 | .mode = VIDEO_MODE_PAL, |
| 75 | }, { |
| 76 | .name = "NTSC", |
| 77 | .id = V4L2_STD_NTSC, |
| 78 | .mode = VIDEO_MODE_NTSC, |
| 79 | }, { |
| 80 | .name = "SECAM", |
| 81 | .id = V4L2_STD_SECAM, |
| 82 | .mode = VIDEO_MODE_SECAM, |
| 83 | }, { |
| 84 | .name = "PAL-M", |
| 85 | .id = V4L2_STD_PAL_M, |
| 86 | .mode = VIDEO_MODE_PAL, |
| 87 | } |
| 88 | }; |
| 89 | |
Markus Rechberger | a38a7d4 | 2005-11-08 21:38:06 -0800 | [diff] [blame] | 90 | static const unsigned char saa7114_i2c_init[] = { |
| 91 | 0x00,0x00,0x01,0x08,0x02,0xc4,0x03,0x30,0x04,0x90,0x05,0x90,0x06,0xeb,0x07,0xe0, |
| 92 | 0x08,0x88,0x09,0x40,0x0a,0x80,0x0b,0x44,0x0c,0x40,0x0d,0x00,0x0e,0x81,0x0f,0x2a, |
| 93 | 0x10,0x06,0x11,0x00,0x12,0xc8,0x13,0x80,0x14,0x00,0x15,0x11,0x16,0x01,0x17,0x42, |
| 94 | 0x18,0x40,0x19,0x80,0x40,0x00,0x41,0xff,0x42,0xff,0x43,0xff,0x44,0xff,0x45,0xff, |
| 95 | 0x46,0xff,0x47,0xff,0x48,0xff,0x49,0xff,0x4a,0xff,0x4b,0xff,0x4c,0xff,0x4d,0xff, |
| 96 | 0x4e,0xff,0x4f,0xff,0x50,0xff,0x51,0xff,0x52,0xff,0x53,0xff,0x54,0x5f,0x55,0xff, |
| 97 | 0x56,0xff,0x57,0xff,0x58,0x00,0x59,0x47,0x5a,0x03,0x5b,0x03,0x5d,0x3e,0x5e,0x00, |
| 98 | 0x80,0x1c,0x83,0x01,0x84,0xa5,0x85,0x10,0x86,0x45,0x87,0x41,0x88,0xf0,0x88,0x00, |
| 99 | 0x88,0xf0,0x90,0x00,0x91,0x08,0x92,0x00,0x93,0x80,0x94,0x08,0x95,0x00,0x96,0xc0, |
| 100 | 0x97,0x02,0x98,0x13,0x99,0x00,0x9a,0x38,0x9b,0x01,0x9c,0x80,0x9d,0x02,0x9e,0x06, |
| 101 | 0x9f,0x01,0xa0,0x01,0xa1,0x00,0xa2,0x00,0xa4,0x80,0xa5,0x36,0xa6,0x36,0xa8,0x67, |
| 102 | 0xa9,0x04,0xaa,0x00,0xac,0x33,0xad,0x02,0xae,0x00,0xb0,0xcd,0xb1,0x04,0xb2,0xcd, |
| 103 | 0xb3,0x04,0xb4,0x01,0xb8,0x00,0xb9,0x00,0xba,0x00,0xbb,0x00,0xbc,0x00,0xbd,0x00, |
| 104 | 0xbe,0x00,0xbf,0x00 |
| 105 | }; |
| 106 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 107 | #define TVNORMS ARRAY_SIZE(tvnorms) |
| 108 | |
| 109 | /* supported controls */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 110 | static struct v4l2_queryctrl em28xx_qctrl[] = { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 111 | { |
| 112 | .id = V4L2_CID_BRIGHTNESS, |
| 113 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 114 | .name = "Brightness", |
| 115 | .minimum = -128, |
| 116 | .maximum = 127, |
| 117 | .step = 1, |
| 118 | .default_value = 0, |
| 119 | .flags = 0, |
| 120 | },{ |
| 121 | .id = V4L2_CID_CONTRAST, |
| 122 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 123 | .name = "Contrast", |
| 124 | .minimum = 0x0, |
| 125 | .maximum = 0x1f, |
| 126 | .step = 0x1, |
| 127 | .default_value = 0x10, |
| 128 | .flags = 0, |
| 129 | },{ |
| 130 | .id = V4L2_CID_SATURATION, |
| 131 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 132 | .name = "Saturation", |
| 133 | .minimum = 0x0, |
| 134 | .maximum = 0x1f, |
| 135 | .step = 0x1, |
| 136 | .default_value = 0x10, |
| 137 | .flags = 0, |
| 138 | },{ |
| 139 | .id = V4L2_CID_AUDIO_VOLUME, |
| 140 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 141 | .name = "Volume", |
| 142 | .minimum = 0x0, |
| 143 | .maximum = 0x1f, |
| 144 | .step = 0x1, |
| 145 | .default_value = 0x1f, |
| 146 | .flags = 0, |
| 147 | },{ |
| 148 | .id = V4L2_CID_AUDIO_MUTE, |
| 149 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 150 | .name = "Mute", |
| 151 | .minimum = 0, |
| 152 | .maximum = 1, |
| 153 | .step = 1, |
| 154 | .default_value = 1, |
| 155 | .flags = 0, |
| 156 | },{ |
| 157 | .id = V4L2_CID_RED_BALANCE, |
| 158 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 159 | .name = "Red chroma balance", |
| 160 | .minimum = -128, |
| 161 | .maximum = 127, |
| 162 | .step = 1, |
| 163 | .default_value = 0, |
| 164 | .flags = 0, |
| 165 | },{ |
| 166 | .id = V4L2_CID_BLUE_BALANCE, |
| 167 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 168 | .name = "Blue chroma balance", |
| 169 | .minimum = -128, |
| 170 | .maximum = 127, |
| 171 | .step = 1, |
| 172 | .default_value = 0, |
| 173 | .flags = 0, |
| 174 | },{ |
| 175 | .id = V4L2_CID_GAMMA, |
| 176 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 177 | .name = "Gamma", |
| 178 | .minimum = 0x0, |
| 179 | .maximum = 0x3f, |
| 180 | .step = 0x1, |
| 181 | .default_value = 0x20, |
| 182 | .flags = 0, |
| 183 | } |
| 184 | }; |
| 185 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 186 | static struct usb_driver em28xx_usb_driver; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 187 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 188 | static DECLARE_MUTEX(em28xx_sysfs_lock); |
| 189 | static DECLARE_RWSEM(em28xx_disconnect); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 190 | |
| 191 | /********************* v4l2 interface ******************************************/ |
| 192 | |
| 193 | static inline unsigned long kvirt_to_pa(unsigned long adr) |
| 194 | { |
| 195 | unsigned long kva, ret; |
| 196 | |
| 197 | kva = (unsigned long)page_address(vmalloc_to_page((void *)adr)); |
| 198 | kva |= adr & (PAGE_SIZE - 1); |
| 199 | ret = __pa(kva); |
| 200 | return ret; |
| 201 | } |
| 202 | |
| 203 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 204 | * em28xx_config() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 205 | * inits registers with sane defaults |
| 206 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 207 | static int em28xx_config(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 208 | { |
| 209 | |
| 210 | /* Sets I2C speed to 100 KHz */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 211 | em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 212 | |
| 213 | /* enable vbi capturing */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 214 | em28xx_audio_usb_mute(dev, 1); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 215 | dev->mute = 1; /* maybe not the right place... */ |
| 216 | dev->volume = 0x1f; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 217 | em28xx_audio_analog_set(dev); |
| 218 | em28xx_audio_analog_setup(dev); |
| 219 | em28xx_outfmt_set_yuv422(dev); |
| 220 | em28xx_colorlevels_set_default(dev); |
| 221 | em28xx_compression_disable(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 222 | |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 227 | * em28xx_config_i2c() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 228 | * configure i2c attached devices |
| 229 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 230 | void em28xx_config_i2c(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 231 | { |
| 232 | struct v4l2_frequency f; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 233 | struct video_decoder_init em28xx_vdi = {.data = NULL }; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 234 | |
| 235 | |
| 236 | /* configure decoder */ |
Markus Rechberger | a38a7d4 | 2005-11-08 21:38:06 -0800 | [diff] [blame] | 237 | if(dev->model == EM2820_BOARD_MSI_VOX_USB_2){ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 238 | em28xx_vdi.data=saa7114_i2c_init; |
| 239 | em28xx_vdi.len=sizeof(saa7114_i2c_init); |
Markus Rechberger | a38a7d4 | 2005-11-08 21:38:06 -0800 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 243 | em28xx_i2c_call_clients(dev, DECODER_INIT, &em28xx_vdi); |
| 244 | em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &dev->ctl_input); |
| 245 | /* em28xx_i2c_call_clients(dev,DECODER_SET_PICTURE, &dev->vpic); */ |
| 246 | /* em28xx_i2c_call_clients(dev,DECODER_SET_NORM,&dev->tvnorm->id); */ |
| 247 | /* em28xx_i2c_call_clients(dev,DECODER_ENABLE_OUTPUT,&output); */ |
| 248 | /* em28xx_i2c_call_clients(dev,DECODER_DUMP, NULL); */ |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 249 | |
| 250 | /* configure tuner */ |
| 251 | f.tuner = 0; |
| 252 | f.type = V4L2_TUNER_ANALOG_TV; |
| 253 | f.frequency = 9076; /* FIXME:remove magic number */ |
| 254 | dev->ctl_freq = f.frequency; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 255 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 256 | |
| 257 | /* configure tda9887 */ |
| 258 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 259 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 260 | /* em28xx_i2c_call_clients(dev,VIDIOC_S_STD,&dev->tvnorm->id); */ |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 264 | * em28xx_empty_framequeues() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 265 | * prepare queues for incoming and outgoing frames |
| 266 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 267 | static void em28xx_empty_framequeues(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 268 | { |
| 269 | u32 i; |
| 270 | |
| 271 | INIT_LIST_HEAD(&dev->inqueue); |
| 272 | INIT_LIST_HEAD(&dev->outqueue); |
| 273 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 274 | for (i = 0; i < EM28XX_NUM_FRAMES; i++) { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 275 | dev->frame[i].state = F_UNUSED; |
| 276 | dev->frame[i].buf.bytesused = 0; |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 281 | * em28xx_v4l2_open() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 282 | * inits the device and starts isoc transfer |
| 283 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 284 | static int em28xx_v4l2_open(struct inode *inode, struct file *filp) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 285 | { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 286 | int minor = iminor(inode); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 287 | int errCode = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 288 | struct em28xx *h,*dev = NULL; |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 289 | struct list_head *list; |
| 290 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 291 | list_for_each(list,&em28xx_devlist) { |
| 292 | h = list_entry(list, struct em28xx, devlist); |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 293 | if (h->vdev->minor == minor) { |
| 294 | dev = h; |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | filp->private_data=dev; |
| 299 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 300 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 301 | em28xx_videodbg("users=%d", dev->users); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 302 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 303 | if (!down_read_trylock(&em28xx_disconnect)) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 304 | return -ERESTARTSYS; |
| 305 | |
| 306 | if (dev->users) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 307 | em28xx_warn("this driver can be opened only once\n"); |
| 308 | up_read(&em28xx_disconnect); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 309 | return -EBUSY; |
| 310 | } |
| 311 | |
| 312 | /* if(dev->vbi_dev->minor == minor){ |
| 313 | dev->type=V4L2_BUF_TYPE_VBI_CAPTURE; |
| 314 | }*/ |
| 315 | if (dev->vdev->minor == minor) { |
| 316 | dev->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 317 | } |
| 318 | |
| 319 | init_MUTEX(&dev->fileop_lock); /* to 1 == available */ |
| 320 | spin_lock_init(&dev->queue_lock); |
| 321 | init_waitqueue_head(&dev->wait_frame); |
| 322 | init_waitqueue_head(&dev->wait_stream); |
| 323 | |
| 324 | down(&dev->lock); |
| 325 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 326 | em28xx_set_alternate(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 327 | |
| 328 | dev->width = norm_maxw(dev); |
| 329 | dev->height = norm_maxh(dev); |
| 330 | dev->frame_size = dev->width * dev->height * 2; |
| 331 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ |
| 332 | dev->bytesperline = dev->width * 2; |
| 333 | dev->hscale = 0; |
| 334 | dev->vscale = 0; |
| 335 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 336 | em28xx_capture_start(dev, 1); |
| 337 | em28xx_resolution_set(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 338 | |
| 339 | /* start the transfer */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 340 | errCode = em28xx_init_isoc(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 341 | if (errCode) |
| 342 | goto err; |
| 343 | |
| 344 | dev->users++; |
| 345 | filp->private_data = dev; |
| 346 | dev->io = IO_NONE; |
| 347 | dev->stream = STREAM_OFF; |
| 348 | dev->num_frames = 0; |
| 349 | |
| 350 | /* prepare queues */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 351 | em28xx_empty_framequeues(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 352 | |
| 353 | dev->state |= DEV_INITIALIZED; |
| 354 | |
| 355 | err: |
| 356 | up(&dev->lock); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 357 | up_read(&em28xx_disconnect); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 358 | return errCode; |
| 359 | } |
| 360 | |
| 361 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 362 | * em28xx_realease_resources() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 363 | * unregisters the v4l2,i2c and usb devices |
| 364 | * called when the device gets disconected or at module unload |
| 365 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 366 | static void em28xx_release_resources(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 367 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 368 | down(&em28xx_sysfs_lock); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 369 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 370 | em28xx_info("V4L2 device /dev/video%d deregistered\n", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 371 | dev->vdev->minor); |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 372 | list_del(&dev->devlist); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 373 | video_unregister_device(dev->vdev); |
| 374 | /* video_unregister_device(dev->vbi_dev); */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 375 | em28xx_i2c_unregister(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 376 | usb_put_dev(dev->udev); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 377 | up(&em28xx_sysfs_lock); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 378 | } |
| 379 | |
| 380 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 381 | * em28xx_v4l2_close() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 382 | * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls |
| 383 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 384 | static int em28xx_v4l2_close(struct inode *inode, struct file *filp) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 385 | { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 386 | int errCode; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 387 | struct em28xx *dev=filp->private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 388 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 389 | em28xx_videodbg("users=%d", dev->users); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 390 | |
| 391 | down(&dev->lock); |
| 392 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 393 | em28xx_uninit_isoc(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 394 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 395 | em28xx_release_buffers(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 396 | |
| 397 | /* the device is already disconnect, free the remaining resources */ |
| 398 | if (dev->state & DEV_DISCONNECTED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 399 | em28xx_release_resources(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 400 | up(&dev->lock); |
| 401 | kfree(dev); |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | /* set alternate 0 */ |
| 406 | dev->alt = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 407 | em28xx_videodbg("setting alternate 0"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 408 | errCode = usb_set_interface(dev->udev, 0, 0); |
| 409 | if (errCode < 0) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 410 | em28xx_errdev ("cannot change alternate number to 0 (error=%i)\n", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 411 | errCode); |
| 412 | } |
| 413 | |
| 414 | dev->users--; |
| 415 | wake_up_interruptible_nr(&dev->open, 1); |
| 416 | up(&dev->lock); |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 421 | * em28xx_v4l2_read() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 422 | * will allocate buffers when called for the first time |
| 423 | */ |
| 424 | static ssize_t |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 425 | em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 426 | loff_t * f_pos) |
| 427 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 428 | struct em28xx_frame_t *f, *i; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 429 | unsigned long lock_flags; |
| 430 | int ret = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 431 | struct em28xx *dev = filp->private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 432 | |
| 433 | if (down_interruptible(&dev->fileop_lock)) |
| 434 | return -ERESTARTSYS; |
| 435 | |
| 436 | if (dev->state & DEV_DISCONNECTED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 437 | em28xx_videodbg("device not present"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 438 | up(&dev->fileop_lock); |
| 439 | return -ENODEV; |
| 440 | } |
| 441 | |
| 442 | if (dev->state & DEV_MISCONFIGURED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 443 | em28xx_videodbg("device misconfigured; close and open it again"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 444 | up(&dev->fileop_lock); |
| 445 | return -EIO; |
| 446 | } |
| 447 | |
| 448 | if (dev->io == IO_MMAP) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 449 | em28xx_videodbg ("IO method is set to mmap; close and open" |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 450 | " the device again to choose the read method"); |
| 451 | up(&dev->fileop_lock); |
| 452 | return -EINVAL; |
| 453 | } |
| 454 | |
| 455 | if (dev->io == IO_NONE) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 456 | if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) { |
| 457 | em28xx_errdev("read failed, not enough memory\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 458 | up(&dev->fileop_lock); |
| 459 | return -ENOMEM; |
| 460 | } |
| 461 | dev->io = IO_READ; |
| 462 | dev->stream = STREAM_ON; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 463 | em28xx_queue_unusedframes(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | if (!count) { |
| 467 | up(&dev->fileop_lock); |
| 468 | return 0; |
| 469 | } |
| 470 | |
| 471 | if (list_empty(&dev->outqueue)) { |
| 472 | if (filp->f_flags & O_NONBLOCK) { |
| 473 | up(&dev->fileop_lock); |
| 474 | return -EAGAIN; |
| 475 | } |
| 476 | ret = wait_event_interruptible |
| 477 | (dev->wait_frame, |
| 478 | (!list_empty(&dev->outqueue)) || |
| 479 | (dev->state & DEV_DISCONNECTED)); |
| 480 | if (ret) { |
| 481 | up(&dev->fileop_lock); |
| 482 | return ret; |
| 483 | } |
| 484 | if (dev->state & DEV_DISCONNECTED) { |
| 485 | up(&dev->fileop_lock); |
| 486 | return -ENODEV; |
| 487 | } |
| 488 | } |
| 489 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 490 | f = list_entry(dev->outqueue.prev, struct em28xx_frame_t, frame); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 491 | |
| 492 | spin_lock_irqsave(&dev->queue_lock, lock_flags); |
| 493 | list_for_each_entry(i, &dev->outqueue, frame) |
| 494 | i->state = F_UNUSED; |
| 495 | INIT_LIST_HEAD(&dev->outqueue); |
| 496 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); |
| 497 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 498 | em28xx_queue_unusedframes(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 499 | |
| 500 | if (count > f->buf.length) |
| 501 | count = f->buf.length; |
| 502 | |
| 503 | if (copy_to_user(buf, f->bufmem, count)) { |
| 504 | up(&dev->fileop_lock); |
| 505 | return -EFAULT; |
| 506 | } |
| 507 | *f_pos += count; |
| 508 | |
| 509 | up(&dev->fileop_lock); |
| 510 | |
| 511 | return count; |
| 512 | } |
| 513 | |
| 514 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 515 | * em28xx_v4l2_poll() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 516 | * will allocate buffers when called for the first time |
| 517 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 518 | static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 519 | { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 520 | unsigned int mask = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 521 | struct em28xx *dev = filp->private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 522 | |
| 523 | if (down_interruptible(&dev->fileop_lock)) |
| 524 | return POLLERR; |
| 525 | |
| 526 | if (dev->state & DEV_DISCONNECTED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 527 | em28xx_videodbg("device not present"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 528 | } else if (dev->state & DEV_MISCONFIGURED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 529 | em28xx_videodbg("device is misconfigured; close and open it again"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 530 | } else { |
| 531 | if (dev->io == IO_NONE) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 532 | if (!em28xx_request_buffers |
| 533 | (dev, EM28XX_NUM_READ_FRAMES)) { |
| 534 | em28xx_warn |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 535 | ("poll() failed, not enough memory\n"); |
| 536 | } else { |
| 537 | dev->io = IO_READ; |
| 538 | dev->stream = STREAM_ON; |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | if (dev->io == IO_READ) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 543 | em28xx_queue_unusedframes(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 544 | poll_wait(filp, &dev->wait_frame, wait); |
| 545 | |
| 546 | if (!list_empty(&dev->outqueue)) |
| 547 | mask |= POLLIN | POLLRDNORM; |
| 548 | |
| 549 | up(&dev->fileop_lock); |
| 550 | |
| 551 | return mask; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | up(&dev->fileop_lock); |
| 556 | return POLLERR; |
| 557 | } |
| 558 | |
| 559 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 560 | * em28xx_vm_open() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 561 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 562 | static void em28xx_vm_open(struct vm_area_struct *vma) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 563 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 564 | struct em28xx_frame_t *f = vma->vm_private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 565 | f->vma_use_count++; |
| 566 | } |
| 567 | |
| 568 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 569 | * em28xx_vm_close() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 570 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 571 | static void em28xx_vm_close(struct vm_area_struct *vma) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 572 | { |
| 573 | /* NOTE: buffers are not freed here */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 574 | struct em28xx_frame_t *f = vma->vm_private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 575 | f->vma_use_count--; |
| 576 | } |
| 577 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 578 | static struct vm_operations_struct em28xx_vm_ops = { |
| 579 | .open = em28xx_vm_open, |
| 580 | .close = em28xx_vm_close, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 581 | }; |
| 582 | |
| 583 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 584 | * em28xx_v4l2_mmap() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 585 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 586 | static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 587 | { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 588 | unsigned long size = vma->vm_end - vma->vm_start, |
| 589 | start = vma->vm_start, pos, page; |
| 590 | u32 i; |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 591 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 592 | struct em28xx *dev = filp->private_data; |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 593 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 594 | if (down_interruptible(&dev->fileop_lock)) |
| 595 | return -ERESTARTSYS; |
| 596 | |
| 597 | if (dev->state & DEV_DISCONNECTED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 598 | em28xx_videodbg("mmap: device not present"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 599 | up(&dev->fileop_lock); |
| 600 | return -ENODEV; |
| 601 | } |
| 602 | |
| 603 | if (dev->state & DEV_MISCONFIGURED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 604 | em28xx_videodbg ("mmap: Device is misconfigured; close and " |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 605 | "open it again"); |
| 606 | up(&dev->fileop_lock); |
| 607 | return -EIO; |
| 608 | } |
| 609 | |
| 610 | if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || |
| 611 | size != PAGE_ALIGN(dev->frame[0].buf.length)) { |
| 612 | up(&dev->fileop_lock); |
| 613 | return -EINVAL; |
| 614 | } |
| 615 | |
| 616 | for (i = 0; i < dev->num_frames; i++) { |
| 617 | if ((dev->frame[i].buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) |
| 618 | break; |
| 619 | } |
| 620 | if (i == dev->num_frames) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 621 | em28xx_videodbg("mmap: user supplied mapping address is out of range"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 622 | up(&dev->fileop_lock); |
| 623 | return -EINVAL; |
| 624 | } |
| 625 | |
| 626 | /* VM_IO is eventually going to replace PageReserved altogether */ |
| 627 | vma->vm_flags |= VM_IO; |
| 628 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ |
| 629 | |
| 630 | pos = (unsigned long)dev->frame[i].bufmem; |
| 631 | while (size > 0) { /* size is page-aligned */ |
| 632 | page = vmalloc_to_pfn((void *)pos); |
| 633 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, |
| 634 | vma->vm_page_prot)) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 635 | em28xx_videodbg("mmap: rename page map failed"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 636 | up(&dev->fileop_lock); |
| 637 | return -EAGAIN; |
| 638 | } |
| 639 | start += PAGE_SIZE; |
| 640 | pos += PAGE_SIZE; |
| 641 | size -= PAGE_SIZE; |
| 642 | } |
| 643 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 644 | vma->vm_ops = &em28xx_vm_ops; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 645 | vma->vm_private_data = &dev->frame[i]; |
| 646 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 647 | em28xx_vm_open(vma); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 648 | up(&dev->fileop_lock); |
| 649 | return 0; |
| 650 | } |
| 651 | |
| 652 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 653 | * em28xx_get_ctrl() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 654 | * return the current saturation, brightness or contrast, mute state |
| 655 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 656 | static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 657 | { |
| 658 | s32 tmp; |
| 659 | switch (ctrl->id) { |
| 660 | case V4L2_CID_AUDIO_MUTE: |
| 661 | ctrl->value = dev->mute; |
| 662 | return 0; |
| 663 | case V4L2_CID_AUDIO_VOLUME: |
| 664 | ctrl->value = dev->volume; |
| 665 | return 0; |
| 666 | case V4L2_CID_BRIGHTNESS: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 667 | if ((tmp = em28xx_brightness_get(dev)) < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 668 | return -EIO; |
| 669 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ |
| 670 | return 0; |
| 671 | case V4L2_CID_CONTRAST: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 672 | if ((ctrl->value = em28xx_contrast_get(dev)) < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 673 | return -EIO; |
| 674 | return 0; |
| 675 | case V4L2_CID_SATURATION: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 676 | if ((ctrl->value = em28xx_saturation_get(dev)) < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 677 | return -EIO; |
| 678 | return 0; |
| 679 | case V4L2_CID_RED_BALANCE: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 680 | if ((tmp = em28xx_v_balance_get(dev)) < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 681 | return -EIO; |
| 682 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ |
| 683 | return 0; |
| 684 | case V4L2_CID_BLUE_BALANCE: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 685 | if ((tmp = em28xx_u_balance_get(dev)) < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 686 | return -EIO; |
| 687 | ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ |
| 688 | return 0; |
| 689 | case V4L2_CID_GAMMA: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 690 | if ((ctrl->value = em28xx_gamma_get(dev)) < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 691 | return -EIO; |
| 692 | return 0; |
| 693 | default: |
| 694 | return -EINVAL; |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 699 | * em28xx_set_ctrl() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 700 | * mute or set new saturation, brightness or contrast |
| 701 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 702 | static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 703 | { |
| 704 | switch (ctrl->id) { |
| 705 | case V4L2_CID_AUDIO_MUTE: |
| 706 | if (ctrl->value != dev->mute) { |
| 707 | dev->mute = ctrl->value; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 708 | em28xx_audio_usb_mute(dev, ctrl->value); |
| 709 | return em28xx_audio_analog_set(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 710 | } |
| 711 | return 0; |
| 712 | case V4L2_CID_AUDIO_VOLUME: |
| 713 | dev->volume = ctrl->value; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 714 | return em28xx_audio_analog_set(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 715 | case V4L2_CID_BRIGHTNESS: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 716 | return em28xx_brightness_set(dev, ctrl->value); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 717 | case V4L2_CID_CONTRAST: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 718 | return em28xx_contrast_set(dev, ctrl->value); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 719 | case V4L2_CID_SATURATION: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 720 | return em28xx_saturation_set(dev, ctrl->value); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 721 | case V4L2_CID_RED_BALANCE: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 722 | return em28xx_v_balance_set(dev, ctrl->value); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 723 | case V4L2_CID_BLUE_BALANCE: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 724 | return em28xx_u_balance_set(dev, ctrl->value); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 725 | case V4L2_CID_GAMMA: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 726 | return em28xx_gamma_set(dev, ctrl->value); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 727 | default: |
| 728 | return -EINVAL; |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 733 | * em28xx_stream_interrupt() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 734 | * stops streaming |
| 735 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 736 | static int em28xx_stream_interrupt(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 737 | { |
| 738 | int ret = 0; |
| 739 | |
| 740 | /* stop reading from the device */ |
| 741 | |
| 742 | dev->stream = STREAM_INTERRUPT; |
| 743 | ret = wait_event_timeout(dev->wait_stream, |
| 744 | (dev->stream == STREAM_OFF) || |
| 745 | (dev->state & DEV_DISCONNECTED), |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 746 | EM28XX_URB_TIMEOUT); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 747 | if (dev->state & DEV_DISCONNECTED) |
| 748 | return -ENODEV; |
| 749 | else if (ret) { |
| 750 | dev->state |= DEV_MISCONFIGURED; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 751 | em28xx_videodbg("device is misconfigured; close and " |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 752 | "open /dev/video%d again", dev->vdev->minor); |
| 753 | return ret; |
| 754 | } |
| 755 | |
| 756 | return 0; |
| 757 | } |
| 758 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 759 | static int em28xx_set_norm(struct em28xx *dev, int width, int height) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 760 | { |
| 761 | unsigned int hscale, vscale; |
| 762 | unsigned int maxh, maxw; |
| 763 | |
| 764 | maxw = norm_maxw(dev); |
| 765 | maxh = norm_maxh(dev); |
| 766 | |
| 767 | /* width must even because of the YUYV format */ |
| 768 | /* height must be even because of interlacing */ |
| 769 | height &= 0xfffe; |
| 770 | width &= 0xfffe; |
| 771 | |
| 772 | if (height < 32) |
| 773 | height = 32; |
| 774 | if (height > maxh) |
| 775 | height = maxh; |
| 776 | if (width < 48) |
| 777 | width = 48; |
| 778 | if (width > maxw) |
| 779 | width = maxw; |
| 780 | |
| 781 | if ((hscale = (((unsigned long)maxw) << 12) / width - 4096L) >= 0x4000) |
| 782 | hscale = 0x3fff; |
| 783 | width = (((unsigned long)maxw) << 12) / (hscale + 4096L); |
| 784 | |
| 785 | if ((vscale = (((unsigned long)maxh) << 12) / height - 4096L) >= 0x4000) |
| 786 | vscale = 0x3fff; |
| 787 | height = (((unsigned long)maxh) << 12) / (vscale + 4096L); |
| 788 | |
| 789 | /* set new image size */ |
| 790 | dev->width = width; |
| 791 | dev->height = height; |
| 792 | dev->frame_size = dev->width * dev->height * 2; |
| 793 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ |
| 794 | dev->bytesperline = dev->width * 2; |
| 795 | dev->hscale = hscale; |
| 796 | dev->vscale = vscale; |
| 797 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 798 | em28xx_resolution_set(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 799 | |
| 800 | return 0; |
| 801 | } |
| 802 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 803 | static void video_mux(struct em28xx *dev, int index) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 804 | { |
| 805 | int input, ainput; |
| 806 | |
| 807 | input = INPUT(index)->vmux; |
| 808 | dev->ctl_input = index; |
| 809 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 810 | em28xx_i2c_call_clients(dev, DECODER_SET_INPUT, &input); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 811 | |
| 812 | dev->ctl_ainput = INPUT(index)->amux; |
| 813 | |
| 814 | switch (dev->ctl_ainput) { |
| 815 | case 0: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 816 | ainput = EM28XX_AUDIO_SRC_TUNER; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 817 | break; |
| 818 | default: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 819 | ainput = EM28XX_AUDIO_SRC_LINE; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 820 | } |
| 821 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 822 | em28xx_audio_source(dev, ainput); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 823 | } |
| 824 | |
| 825 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 826 | * em28xx_v4l2_do_ioctl() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 827 | * This function is _not_ called directly, but from |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 828 | * em28xx_v4l2_ioctl. Userspace |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 829 | * copying is done already, arg is a kernel pointer. |
| 830 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 831 | static int em28xx_do_ioctl(struct inode *inode, struct file *filp, |
| 832 | struct em28xx *dev, unsigned int cmd, void *arg, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 833 | v4l2_kioctl driver_ioctl) |
| 834 | { |
| 835 | int ret; |
| 836 | |
| 837 | switch (cmd) { |
| 838 | /* ---------- tv norms ---------- */ |
| 839 | case VIDIOC_ENUMSTD: |
| 840 | { |
| 841 | struct v4l2_standard *e = arg; |
| 842 | unsigned int i; |
| 843 | |
| 844 | i = e->index; |
| 845 | if (i >= TVNORMS) |
| 846 | return -EINVAL; |
| 847 | ret = v4l2_video_std_construct(e, tvnorms[e->index].id, |
| 848 | tvnorms[e->index].name); |
| 849 | e->index = i; |
| 850 | if (ret < 0) |
| 851 | return ret; |
| 852 | return 0; |
| 853 | } |
| 854 | case VIDIOC_G_STD: |
| 855 | { |
| 856 | v4l2_std_id *id = arg; |
| 857 | |
| 858 | *id = dev->tvnorm->id; |
| 859 | return 0; |
| 860 | } |
| 861 | case VIDIOC_S_STD: |
| 862 | { |
| 863 | v4l2_std_id *id = arg; |
| 864 | unsigned int i; |
| 865 | |
| 866 | for (i = 0; i < TVNORMS; i++) |
| 867 | if (*id == tvnorms[i].id) |
| 868 | break; |
| 869 | if (i == TVNORMS) |
| 870 | for (i = 0; i < TVNORMS; i++) |
| 871 | if (*id & tvnorms[i].id) |
| 872 | break; |
| 873 | if (i == TVNORMS) |
| 874 | return -EINVAL; |
| 875 | |
| 876 | down(&dev->lock); |
| 877 | dev->tvnorm = &tvnorms[i]; |
| 878 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 879 | em28xx_set_norm(dev, dev->width, dev->height); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 880 | |
| 881 | /* |
| 882 | dev->width=norm_maxw(dev); |
| 883 | dev->height=norm_maxh(dev); |
| 884 | dev->frame_size=dev->width*dev->height*2; |
| 885 | dev->field_size=dev->frame_size>>1; |
| 886 | dev->bytesperline=dev->width*2; |
| 887 | dev->hscale=0; |
| 888 | dev->vscale=0; |
| 889 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 890 | em28xx_resolution_set(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 891 | */ |
| 892 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 893 | em28xx_uninit_isoc(dev); |
| 894 | em28xx_set_alternate(dev); |
| 895 | em28xx_capture_start(dev, 1); |
| 896 | em28xx_resolution_set(dev); |
| 897 | em28xx_init_isoc(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 898 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 899 | em28xx_i2c_call_clients(dev, DECODER_SET_NORM, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 900 | &tvnorms[i].mode); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 901 | em28xx_i2c_call_clients(dev, VIDIOC_S_STD, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 902 | &dev->tvnorm->id); |
| 903 | |
| 904 | up(&dev->lock); |
| 905 | |
| 906 | return 0; |
| 907 | } |
| 908 | |
| 909 | /* ------ input switching ---------- */ |
| 910 | case VIDIOC_ENUMINPUT: |
| 911 | { |
| 912 | struct v4l2_input *i = arg; |
| 913 | unsigned int n; |
| 914 | static const char *iname[] = { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 915 | [EM28XX_VMUX_COMPOSITE1] = "Composite1", |
| 916 | [EM28XX_VMUX_COMPOSITE2] = "Composite2", |
| 917 | [EM28XX_VMUX_COMPOSITE3] = "Composite3", |
| 918 | [EM28XX_VMUX_COMPOSITE4] = "Composite4", |
| 919 | [EM28XX_VMUX_SVIDEO] = "S-Video", |
| 920 | [EM28XX_VMUX_TELEVISION] = "Television", |
| 921 | [EM28XX_VMUX_CABLE] = "Cable TV", |
| 922 | [EM28XX_VMUX_DVB] = "DVB", |
| 923 | [EM28XX_VMUX_DEBUG] = "for debug only", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 924 | }; |
| 925 | |
| 926 | n = i->index; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 927 | if (n >= MAX_EM28XX_INPUT) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 928 | return -EINVAL; |
| 929 | if (0 == INPUT(n)->type) |
| 930 | return -EINVAL; |
| 931 | memset(i, 0, sizeof(*i)); |
| 932 | i->index = n; |
| 933 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 934 | strcpy(i->name, iname[INPUT(n)->type]); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 935 | if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || |
| 936 | (EM28XX_VMUX_CABLE == INPUT(n)->type)) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 937 | i->type = V4L2_INPUT_TYPE_TUNER; |
| 938 | for (n = 0; n < ARRAY_SIZE(tvnorms); n++) |
| 939 | i->std |= tvnorms[n].id; |
| 940 | return 0; |
| 941 | } |
| 942 | |
| 943 | case VIDIOC_G_INPUT: |
| 944 | { |
| 945 | int *i = arg; |
| 946 | *i = dev->ctl_input; |
| 947 | |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | case VIDIOC_S_INPUT: |
| 952 | { |
| 953 | int *index = arg; |
| 954 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 955 | if (*index >= MAX_EM28XX_INPUT) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 956 | return -EINVAL; |
| 957 | if (0 == INPUT(*index)->type) |
| 958 | return -EINVAL; |
| 959 | |
| 960 | down(&dev->lock); |
| 961 | video_mux(dev, *index); |
| 962 | up(&dev->lock); |
| 963 | |
| 964 | return 0; |
| 965 | } |
| 966 | |
| 967 | case VIDIOC_G_AUDIO: |
| 968 | { |
| 969 | struct v4l2_audio *a = arg; |
| 970 | unsigned int index = a->index; |
| 971 | |
| 972 | if (a->index > 1) |
| 973 | return -EINVAL; |
| 974 | memset(a, 0, sizeof(*a)); |
| 975 | index = dev->ctl_ainput; |
| 976 | |
| 977 | if (index == 0) { |
| 978 | strcpy(a->name, "Television"); |
| 979 | } else { |
| 980 | strcpy(a->name, "Line In"); |
| 981 | } |
| 982 | a->capability = V4L2_AUDCAP_STEREO; |
| 983 | a->index = index; |
| 984 | return 0; |
| 985 | } |
| 986 | |
| 987 | case VIDIOC_S_AUDIO: |
| 988 | { |
| 989 | struct v4l2_audio *a = arg; |
| 990 | if (a->index != dev->ctl_ainput) |
| 991 | return -EINVAL; |
| 992 | |
| 993 | return 0; |
| 994 | } |
| 995 | |
| 996 | /* --- controls ---------------------------------------------- */ |
| 997 | case VIDIOC_QUERYCTRL: |
| 998 | { |
| 999 | struct v4l2_queryctrl *qc = arg; |
| 1000 | u8 i, n; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1001 | n = sizeof(em28xx_qctrl) / sizeof(em28xx_qctrl[0]); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1002 | for (i = 0; i < n; i++) |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1003 | if (qc->id && qc->id == em28xx_qctrl[i].id) { |
| 1004 | memcpy(qc, &(em28xx_qctrl[i]), |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1005 | sizeof(*qc)); |
| 1006 | return 0; |
| 1007 | } |
| 1008 | |
| 1009 | return -EINVAL; |
| 1010 | } |
| 1011 | |
| 1012 | case VIDIOC_G_CTRL: |
| 1013 | { |
| 1014 | struct v4l2_control *ctrl = arg; |
| 1015 | |
| 1016 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1017 | return em28xx_get_ctrl(dev, ctrl); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1018 | } |
| 1019 | |
| 1020 | case VIDIOC_S_CTRL_OLD: /* ??? */ |
| 1021 | case VIDIOC_S_CTRL: |
| 1022 | { |
| 1023 | struct v4l2_control *ctrl = arg; |
| 1024 | u8 i, n; |
| 1025 | |
| 1026 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1027 | n = sizeof(em28xx_qctrl) / sizeof(em28xx_qctrl[0]); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1028 | for (i = 0; i < n; i++) |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1029 | if (ctrl->id == em28xx_qctrl[i].id) { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1030 | if (ctrl->value < |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1031 | em28xx_qctrl[i].minimum |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1032 | || ctrl->value > |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1033 | em28xx_qctrl[i].maximum) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1034 | return -ERANGE; |
| 1035 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1036 | return em28xx_set_ctrl(dev, ctrl); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1037 | } |
| 1038 | return -EINVAL; |
| 1039 | } |
| 1040 | |
| 1041 | /* --- tuner ioctls ------------------------------------------ */ |
| 1042 | case VIDIOC_G_TUNER: |
| 1043 | { |
| 1044 | struct v4l2_tuner *t = arg; |
| 1045 | int status = 0; |
| 1046 | |
| 1047 | if (0 != t->index) |
| 1048 | return -EINVAL; |
| 1049 | |
| 1050 | memset(t, 0, sizeof(*t)); |
| 1051 | strcpy(t->name, "Tuner"); |
| 1052 | t->type = V4L2_TUNER_ANALOG_TV; |
| 1053 | t->capability = V4L2_TUNER_CAP_NORM; |
| 1054 | t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ |
| 1055 | /* t->signal = 0xffff;*/ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1056 | /* em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/ |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1057 | /* No way to get signal strength? */ |
| 1058 | down(&dev->lock); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1059 | em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1060 | &status); |
| 1061 | up(&dev->lock); |
| 1062 | t->signal = |
| 1063 | (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; |
| 1064 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1065 | em28xx_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x", t->signal, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1066 | t->afc); |
| 1067 | return 0; |
| 1068 | } |
| 1069 | case VIDIOC_S_TUNER: |
| 1070 | { |
| 1071 | struct v4l2_tuner *t = arg; |
| 1072 | int status = 0; |
| 1073 | |
| 1074 | if (0 != t->index) |
| 1075 | return -EINVAL; |
| 1076 | memset(t, 0, sizeof(*t)); |
| 1077 | strcpy(t->name, "Tuner"); |
| 1078 | t->type = V4L2_TUNER_ANALOG_TV; |
| 1079 | t->capability = V4L2_TUNER_CAP_NORM; |
| 1080 | t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ |
| 1081 | /* t->signal = 0xffff; */ |
| 1082 | /* No way to get signal strength? */ |
| 1083 | down(&dev->lock); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1084 | em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1085 | &status); |
| 1086 | up(&dev->lock); |
| 1087 | t->signal = |
| 1088 | (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; |
| 1089 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1090 | em28xx_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1091 | t->signal, t->afc); |
| 1092 | return 0; |
| 1093 | } |
| 1094 | case VIDIOC_G_FREQUENCY: |
| 1095 | { |
| 1096 | struct v4l2_frequency *f = arg; |
| 1097 | |
| 1098 | memset(f, 0, sizeof(*f)); |
| 1099 | f->type = V4L2_TUNER_ANALOG_TV; |
| 1100 | f->frequency = dev->ctl_freq; |
| 1101 | |
| 1102 | return 0; |
| 1103 | } |
| 1104 | case VIDIOC_S_FREQUENCY: |
| 1105 | { |
| 1106 | struct v4l2_frequency *f = arg; |
| 1107 | |
| 1108 | if (0 != f->tuner) |
| 1109 | return -EINVAL; |
| 1110 | |
| 1111 | if (V4L2_TUNER_ANALOG_TV != f->type) |
| 1112 | return -EINVAL; |
| 1113 | |
| 1114 | down(&dev->lock); |
| 1115 | dev->ctl_freq = f->frequency; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1116 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1117 | up(&dev->lock); |
| 1118 | return 0; |
| 1119 | } |
| 1120 | |
| 1121 | case VIDIOC_CROPCAP: |
| 1122 | { |
| 1123 | struct v4l2_cropcap *cc = arg; |
| 1124 | |
| 1125 | if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1126 | return -EINVAL; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1127 | cc->bounds.left = 0; |
| 1128 | cc->bounds.top = 0; |
| 1129 | cc->bounds.width = dev->width; |
| 1130 | cc->bounds.height = dev->height; |
| 1131 | cc->defrect = cc->bounds; |
| 1132 | cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ |
| 1133 | cc->pixelaspect.denominator = 59; |
| 1134 | return 0; |
| 1135 | } |
| 1136 | case VIDIOC_STREAMON: |
| 1137 | { |
| 1138 | int *type = arg; |
| 1139 | |
| 1140 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE |
| 1141 | || dev->io != IO_MMAP) |
| 1142 | return -EINVAL; |
| 1143 | |
| 1144 | if (list_empty(&dev->inqueue)) |
| 1145 | return -EINVAL; |
| 1146 | |
| 1147 | dev->stream = STREAM_ON; /* FIXME: Start video capture here? */ |
| 1148 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1149 | em28xx_videodbg("VIDIOC_STREAMON: starting stream"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1150 | |
| 1151 | return 0; |
| 1152 | } |
| 1153 | case VIDIOC_STREAMOFF: |
| 1154 | { |
| 1155 | int *type = arg; |
| 1156 | int ret; |
| 1157 | |
| 1158 | if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE |
| 1159 | || dev->io != IO_MMAP) |
| 1160 | return -EINVAL; |
| 1161 | |
| 1162 | if (dev->stream == STREAM_ON) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1163 | em28xx_videodbg ("VIDIOC_STREAMOFF: interrupting stream"); |
| 1164 | if ((ret = em28xx_stream_interrupt(dev))) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1165 | return ret; |
| 1166 | } |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1167 | em28xx_empty_framequeues(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1168 | |
| 1169 | return 0; |
| 1170 | } |
| 1171 | default: |
| 1172 | return v4l_compat_translate_ioctl(inode, filp, cmd, arg, |
| 1173 | driver_ioctl); |
| 1174 | } |
| 1175 | return 0; |
| 1176 | } |
| 1177 | |
| 1178 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1179 | * em28xx_v4l2_do_ioctl() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1180 | * This function is _not_ called directly, but from |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1181 | * em28xx_v4l2_ioctl. Userspace |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1182 | * copying is done already, arg is a kernel pointer. |
| 1183 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1184 | static int em28xx_video_do_ioctl(struct inode *inode, struct file *filp, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1185 | unsigned int cmd, void *arg) |
| 1186 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1187 | struct em28xx *dev = filp->private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1188 | |
| 1189 | if (!dev) |
| 1190 | return -ENODEV; |
| 1191 | |
| 1192 | if (video_debug > 1) |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1193 | em28xx_print_ioctl(dev->name,cmd); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1194 | |
| 1195 | switch (cmd) { |
| 1196 | |
| 1197 | /* --- capabilities ------------------------------------------ */ |
| 1198 | case VIDIOC_QUERYCAP: |
| 1199 | { |
| 1200 | struct v4l2_capability *cap = arg; |
| 1201 | |
| 1202 | memset(cap, 0, sizeof(*cap)); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1203 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); |
| 1204 | strlcpy(cap->card, em28xx_boards[dev->model].name, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1205 | sizeof(cap->card)); |
| 1206 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, |
| 1207 | sizeof(cap->bus_info)); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1208 | cap->version = EM28XX_VERSION_CODE; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1209 | cap->capabilities = |
| 1210 | V4L2_CAP_VIDEO_CAPTURE | |
| 1211 | V4L2_CAP_AUDIO | |
| 1212 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; |
| 1213 | if (dev->has_tuner) |
| 1214 | cap->capabilities |= V4L2_CAP_TUNER; |
| 1215 | return 0; |
| 1216 | } |
| 1217 | |
| 1218 | /* --- capture ioctls ---------------------------------------- */ |
| 1219 | case VIDIOC_ENUM_FMT: |
| 1220 | { |
| 1221 | struct v4l2_fmtdesc *fmtd = arg; |
| 1222 | |
| 1223 | if (fmtd->index != 0) |
| 1224 | return -EINVAL; |
| 1225 | memset(fmtd, 0, sizeof(*fmtd)); |
| 1226 | fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1227 | strcpy(fmtd->description, "Packed YUY2"); |
| 1228 | fmtd->pixelformat = V4L2_PIX_FMT_YUYV; |
| 1229 | memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); |
| 1230 | return 0; |
| 1231 | } |
| 1232 | |
| 1233 | case VIDIOC_G_FMT: |
| 1234 | { |
| 1235 | struct v4l2_format *format = arg; |
| 1236 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1237 | em28xx_videodbg("VIDIOC_G_FMT: type=%s", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1238 | format->type == |
| 1239 | V4L2_BUF_TYPE_VIDEO_CAPTURE ? |
| 1240 | "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == |
| 1241 | V4L2_BUF_TYPE_VBI_CAPTURE ? |
| 1242 | "V4L2_BUF_TYPE_VBI_CAPTURE " : |
| 1243 | "not supported"); |
| 1244 | |
| 1245 | if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1246 | return -EINVAL; |
| 1247 | |
| 1248 | format->fmt.pix.width = dev->width; |
| 1249 | format->fmt.pix.height = dev->height; |
| 1250 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; |
| 1251 | format->fmt.pix.bytesperline = dev->bytesperline; |
| 1252 | format->fmt.pix.sizeimage = dev->frame_size; |
| 1253 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
| 1254 | format->fmt.pix.field = dev->interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ |
| 1255 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1256 | em28xx_videodbg("VIDIOC_G_FMT: %dx%d", dev->width, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1257 | dev->height); |
| 1258 | return 0; |
| 1259 | } |
| 1260 | |
| 1261 | case VIDIOC_TRY_FMT: |
| 1262 | case VIDIOC_S_FMT: |
| 1263 | { |
| 1264 | struct v4l2_format *format = arg; |
| 1265 | u32 i; |
| 1266 | int ret = 0; |
| 1267 | int width = format->fmt.pix.width; |
| 1268 | int height = format->fmt.pix.height; |
| 1269 | unsigned int hscale, vscale; |
| 1270 | unsigned int maxh, maxw; |
| 1271 | |
| 1272 | maxw = norm_maxw(dev); |
| 1273 | maxh = norm_maxh(dev); |
| 1274 | |
| 1275 | /* int both_fields; */ |
| 1276 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1277 | em28xx_videodbg("%s: type=%s", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1278 | cmd == |
| 1279 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : |
| 1280 | "VIDIOC_S_FMT", |
| 1281 | format->type == |
| 1282 | V4L2_BUF_TYPE_VIDEO_CAPTURE ? |
| 1283 | "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == |
| 1284 | V4L2_BUF_TYPE_VBI_CAPTURE ? |
| 1285 | "V4L2_BUF_TYPE_VBI_CAPTURE " : |
| 1286 | "not supported"); |
| 1287 | |
| 1288 | if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1289 | return -EINVAL; |
| 1290 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1291 | em28xx_videodbg("%s: requested %dx%d", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1292 | cmd == |
| 1293 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : |
| 1294 | "VIDIOC_S_FMT", format->fmt.pix.width, |
| 1295 | format->fmt.pix.height); |
| 1296 | |
| 1297 | /* FIXME: Move some code away from here */ |
| 1298 | /* width must even because of the YUYV format */ |
| 1299 | /* height must be even because of interlacing */ |
| 1300 | height &= 0xfffe; |
| 1301 | width &= 0xfffe; |
| 1302 | |
| 1303 | if (height < 32) |
| 1304 | height = 32; |
| 1305 | if (height > maxh) |
| 1306 | height = maxh; |
| 1307 | if (width < 48) |
| 1308 | width = 48; |
| 1309 | if (width > maxw) |
| 1310 | width = maxw; |
| 1311 | |
Sascha Sommer | 74458e6 | 2005-11-08 21:37:33 -0800 | [diff] [blame] | 1312 | if(dev->is_em2800){ |
Sascha Sommer | 52c02fc | 2005-11-08 21:38:10 -0800 | [diff] [blame] | 1313 | /* the em2800 can only scale down to 50% */ |
Sascha Sommer | 74458e6 | 2005-11-08 21:37:33 -0800 | [diff] [blame] | 1314 | if(height % (maxh / 2)) |
| 1315 | height=maxh; |
| 1316 | if(width % (maxw / 2)) |
| 1317 | width=maxw; |
Sascha Sommer | 52c02fc | 2005-11-08 21:38:10 -0800 | [diff] [blame] | 1318 | /* according to empiatech support */ |
| 1319 | /* the MaxPacketSize is to small to support */ |
| 1320 | /* framesizes larger than 640x480 @ 30 fps */ |
| 1321 | /* or 640x576 @ 25 fps. As this would cut */ |
| 1322 | /* of a part of the image we prefer */ |
| 1323 | /* 360x576 or 360x480 for now */ |
Sascha Sommer | 74458e6 | 2005-11-08 21:37:33 -0800 | [diff] [blame] | 1324 | if(width == maxw && height == maxh) |
| 1325 | width /= 2; |
| 1326 | } |
| 1327 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1328 | if ((hscale = |
| 1329 | (((unsigned long)maxw) << 12) / width - 4096L) >= |
| 1330 | 0x4000) |
| 1331 | hscale = 0x3fff; |
| 1332 | width = |
| 1333 | (((unsigned long)maxw) << 12) / (hscale + 4096L); |
| 1334 | |
| 1335 | if ((vscale = |
| 1336 | (((unsigned long)maxh) << 12) / height - 4096L) >= |
| 1337 | 0x4000) |
| 1338 | vscale = 0x3fff; |
| 1339 | height = |
| 1340 | (((unsigned long)maxh) << 12) / (vscale + 4096L); |
| 1341 | |
| 1342 | format->fmt.pix.width = width; |
| 1343 | format->fmt.pix.height = height; |
| 1344 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; |
| 1345 | format->fmt.pix.bytesperline = width * 2; |
| 1346 | format->fmt.pix.sizeimage = width * 2 * height; |
| 1347 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
| 1348 | format->fmt.pix.field = V4L2_FIELD_INTERLACED; |
| 1349 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1350 | em28xx_videodbg("%s: returned %dx%d (%d, %d)", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1351 | cmd == |
| 1352 | VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : |
| 1353 | "VIDIOC_S_FMT", format->fmt.pix.width, |
| 1354 | format->fmt.pix.height, hscale, vscale); |
| 1355 | |
| 1356 | if (cmd == VIDIOC_TRY_FMT) |
| 1357 | return 0; |
| 1358 | |
| 1359 | for (i = 0; i < dev->num_frames; i++) |
| 1360 | if (dev->frame[i].vma_use_count) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1361 | em28xx_videodbg("VIDIOC_S_FMT failed. " |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1362 | "Unmap the buffers first."); |
| 1363 | return -EINVAL; |
| 1364 | } |
| 1365 | |
| 1366 | /* stop io in case it is already in progress */ |
| 1367 | if (dev->stream == STREAM_ON) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1368 | em28xx_videodbg("VIDIOC_SET_FMT: interupting stream"); |
| 1369 | if ((ret = em28xx_stream_interrupt(dev))) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1370 | return ret; |
| 1371 | } |
| 1372 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1373 | em28xx_release_buffers(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1374 | dev->io = IO_NONE; |
| 1375 | |
| 1376 | /* set new image size */ |
| 1377 | dev->width = width; |
| 1378 | dev->height = height; |
| 1379 | dev->frame_size = dev->width * dev->height * 2; |
| 1380 | dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ |
| 1381 | dev->bytesperline = dev->width * 2; |
| 1382 | dev->hscale = hscale; |
| 1383 | dev->vscale = vscale; |
| 1384 | /* dev->both_fileds = both_fileds; */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1385 | em28xx_uninit_isoc(dev); |
| 1386 | em28xx_set_alternate(dev); |
| 1387 | em28xx_capture_start(dev, 1); |
| 1388 | em28xx_resolution_set(dev); |
| 1389 | em28xx_init_isoc(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1390 | |
| 1391 | return 0; |
| 1392 | } |
| 1393 | |
| 1394 | /* --- streaming capture ------------------------------------- */ |
| 1395 | case VIDIOC_REQBUFS: |
| 1396 | { |
| 1397 | struct v4l2_requestbuffers *rb = arg; |
| 1398 | u32 i; |
| 1399 | int ret; |
| 1400 | |
| 1401 | if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1402 | rb->memory != V4L2_MEMORY_MMAP) |
| 1403 | return -EINVAL; |
| 1404 | |
| 1405 | if (dev->io == IO_READ) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1406 | em28xx_videodbg ("method is set to read;" |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1407 | " close and open the device again to" |
| 1408 | " choose the mmap I/O method"); |
| 1409 | return -EINVAL; |
| 1410 | } |
| 1411 | |
| 1412 | for (i = 0; i < dev->num_frames; i++) |
| 1413 | if (dev->frame[i].vma_use_count) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1414 | em28xx_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1415 | return -EINVAL; |
| 1416 | } |
| 1417 | |
| 1418 | if (dev->stream == STREAM_ON) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1419 | em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream"); |
| 1420 | if ((ret = em28xx_stream_interrupt(dev))) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1421 | return ret; |
| 1422 | } |
| 1423 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1424 | em28xx_empty_framequeues(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1425 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1426 | em28xx_release_buffers(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1427 | if (rb->count) |
| 1428 | rb->count = |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1429 | em28xx_request_buffers(dev, rb->count); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1430 | |
| 1431 | dev->frame_current = NULL; |
| 1432 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1433 | em28xx_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1434 | rb->count); |
| 1435 | dev->io = rb->count ? IO_MMAP : IO_NONE; |
| 1436 | return 0; |
| 1437 | } |
| 1438 | |
| 1439 | case VIDIOC_QUERYBUF: |
| 1440 | { |
| 1441 | struct v4l2_buffer *b = arg; |
| 1442 | |
| 1443 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1444 | b->index >= dev->num_frames || dev->io != IO_MMAP) |
| 1445 | return -EINVAL; |
| 1446 | |
| 1447 | memcpy(b, &dev->frame[b->index].buf, sizeof(*b)); |
| 1448 | |
| 1449 | if (dev->frame[b->index].vma_use_count) { |
| 1450 | b->flags |= V4L2_BUF_FLAG_MAPPED; |
| 1451 | } |
| 1452 | if (dev->frame[b->index].state == F_DONE) |
| 1453 | b->flags |= V4L2_BUF_FLAG_DONE; |
| 1454 | else if (dev->frame[b->index].state != F_UNUSED) |
| 1455 | b->flags |= V4L2_BUF_FLAG_QUEUED; |
| 1456 | return 0; |
| 1457 | } |
| 1458 | case VIDIOC_QBUF: |
| 1459 | { |
| 1460 | struct v4l2_buffer *b = arg; |
| 1461 | unsigned long lock_flags; |
| 1462 | |
| 1463 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
| 1464 | b->index >= dev->num_frames || dev->io != IO_MMAP) { |
| 1465 | return -EINVAL; |
| 1466 | } |
| 1467 | |
| 1468 | if (dev->frame[b->index].state != F_UNUSED) { |
| 1469 | return -EAGAIN; |
| 1470 | } |
| 1471 | dev->frame[b->index].state = F_QUEUED; |
| 1472 | |
| 1473 | /* add frame to fifo */ |
| 1474 | spin_lock_irqsave(&dev->queue_lock, lock_flags); |
| 1475 | list_add_tail(&dev->frame[b->index].frame, |
| 1476 | &dev->inqueue); |
| 1477 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); |
| 1478 | |
| 1479 | return 0; |
| 1480 | } |
| 1481 | case VIDIOC_DQBUF: |
| 1482 | { |
| 1483 | struct v4l2_buffer *b = arg; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1484 | struct em28xx_frame_t *f; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1485 | unsigned long lock_flags; |
| 1486 | int ret = 0; |
| 1487 | |
| 1488 | if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE |
| 1489 | || dev->io != IO_MMAP) |
| 1490 | return -EINVAL; |
| 1491 | |
| 1492 | if (list_empty(&dev->outqueue)) { |
| 1493 | if (dev->stream == STREAM_OFF) |
| 1494 | return -EINVAL; |
| 1495 | if (filp->f_flags & O_NONBLOCK) |
| 1496 | return -EAGAIN; |
| 1497 | ret = wait_event_interruptible |
| 1498 | (dev->wait_frame, |
| 1499 | (!list_empty(&dev->outqueue)) || |
| 1500 | (dev->state & DEV_DISCONNECTED)); |
| 1501 | if (ret) |
| 1502 | return ret; |
| 1503 | if (dev->state & DEV_DISCONNECTED) |
| 1504 | return -ENODEV; |
| 1505 | } |
| 1506 | |
| 1507 | spin_lock_irqsave(&dev->queue_lock, lock_flags); |
| 1508 | f = list_entry(dev->outqueue.next, |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1509 | struct em28xx_frame_t, frame); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1510 | list_del(dev->outqueue.next); |
| 1511 | spin_unlock_irqrestore(&dev->queue_lock, lock_flags); |
| 1512 | |
| 1513 | f->state = F_UNUSED; |
| 1514 | memcpy(b, &f->buf, sizeof(*b)); |
| 1515 | |
| 1516 | if (f->vma_use_count) |
| 1517 | b->flags |= V4L2_BUF_FLAG_MAPPED; |
| 1518 | |
| 1519 | return 0; |
| 1520 | } |
| 1521 | default: |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1522 | return em28xx_do_ioctl(inode, filp, dev, cmd, arg, |
| 1523 | em28xx_video_do_ioctl); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1524 | } |
| 1525 | return 0; |
| 1526 | } |
| 1527 | |
| 1528 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1529 | * em28xx_v4l2_ioctl() |
| 1530 | * handle v4l2 ioctl the main action happens in em28xx_v4l2_do_ioctl() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1531 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1532 | static int em28xx_v4l2_ioctl(struct inode *inode, struct file *filp, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1533 | unsigned int cmd, unsigned long arg) |
| 1534 | { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1535 | int ret = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1536 | struct em28xx *dev = filp->private_data; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1537 | |
| 1538 | if (down_interruptible(&dev->fileop_lock)) |
| 1539 | return -ERESTARTSYS; |
| 1540 | |
| 1541 | if (dev->state & DEV_DISCONNECTED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1542 | em28xx_errdev("v4l2 ioctl: device not present\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1543 | up(&dev->fileop_lock); |
| 1544 | return -ENODEV; |
| 1545 | } |
| 1546 | |
| 1547 | if (dev->state & DEV_MISCONFIGURED) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1548 | em28xx_errdev |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1549 | ("v4l2 ioctl: device is misconfigured; close and open it again\n"); |
| 1550 | up(&dev->fileop_lock); |
| 1551 | return -EIO; |
| 1552 | } |
| 1553 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1554 | ret = video_usercopy(inode, filp, cmd, arg, em28xx_video_do_ioctl); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1555 | |
| 1556 | up(&dev->fileop_lock); |
| 1557 | |
| 1558 | return ret; |
| 1559 | } |
| 1560 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1561 | static struct file_operations em28xx_v4l_fops = { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1562 | .owner = THIS_MODULE, |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1563 | .open = em28xx_v4l2_open, |
| 1564 | .release = em28xx_v4l2_close, |
| 1565 | .ioctl = em28xx_v4l2_ioctl, |
| 1566 | .read = em28xx_v4l2_read, |
| 1567 | .poll = em28xx_v4l2_poll, |
| 1568 | .mmap = em28xx_v4l2_mmap, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1569 | .llseek = no_llseek, |
| 1570 | }; |
| 1571 | |
| 1572 | /******************************** usb interface *****************************************/ |
| 1573 | |
| 1574 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1575 | * em28xx_init_dev() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1576 | * allocates and inits the device structs, registers i2c bus and v4l device |
| 1577 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1578 | static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1579 | int minor, int model) |
| 1580 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1581 | struct em28xx *dev = *devhandle; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1582 | int retval = -ENOMEM; |
| 1583 | int errCode, i; |
| 1584 | unsigned int maxh, maxw; |
| 1585 | struct usb_interface *uif; |
| 1586 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1587 | dev->udev = udev; |
| 1588 | dev->model = model; |
| 1589 | init_MUTEX(&dev->lock); |
| 1590 | init_waitqueue_head(&dev->open); |
| 1591 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1592 | dev->em28xx_write_regs = em28xx_write_regs; |
| 1593 | dev->em28xx_read_reg = em28xx_read_reg; |
| 1594 | dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len; |
| 1595 | dev->em28xx_write_regs_req = em28xx_write_regs_req; |
| 1596 | dev->em28xx_read_reg_req = em28xx_read_reg_req; |
| 1597 | dev->is_em2800 = em28xx_boards[model].is_em2800; |
| 1598 | dev->has_tuner = em28xx_boards[model].has_tuner; |
| 1599 | dev->has_msp34xx = em28xx_boards[model].has_msp34xx; |
| 1600 | dev->tda9887_conf = em28xx_boards[model].tda9887_conf; |
| 1601 | dev->decoder = em28xx_boards[model].decoder; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1602 | |
| 1603 | if (tuner >= 0) |
| 1604 | dev->tuner_type = tuner; |
| 1605 | else |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1606 | dev->tuner_type = em28xx_boards[model].tuner_type; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1607 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1608 | dev->video_inputs = em28xx_boards[model].vchannels; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1609 | |
| 1610 | for (i = 0; i < TVNORMS; i++) |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1611 | if (em28xx_boards[model].norm == tvnorms[i].mode) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1612 | break; |
| 1613 | if (i == TVNORMS) |
| 1614 | i = 0; |
| 1615 | |
| 1616 | dev->tvnorm = &tvnorms[i]; /* set default norm */ |
| 1617 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1618 | em28xx_videodbg("tvnorm=%s\n", dev->tvnorm->name); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1619 | |
| 1620 | maxw = norm_maxw(dev); |
| 1621 | maxh = norm_maxh(dev); |
| 1622 | |
| 1623 | /* set default image size */ |
| 1624 | dev->width = maxw; |
| 1625 | dev->height = maxh; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1626 | dev->interlaced = EM28XX_INTERLACED_DEFAULT; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1627 | dev->field_size = dev->width * dev->height; |
| 1628 | dev->frame_size = |
| 1629 | dev->interlaced ? dev->field_size << 1 : dev->field_size; |
| 1630 | dev->bytesperline = dev->width * 2; |
| 1631 | dev->hscale = 0; |
| 1632 | dev->vscale = 0; |
| 1633 | dev->ctl_input = 2; |
| 1634 | |
| 1635 | /* setup video picture settings for saa7113h */ |
| 1636 | memset(&dev->vpic, 0, sizeof(dev->vpic)); |
| 1637 | dev->vpic.colour = 128 << 8; |
| 1638 | dev->vpic.hue = 128 << 8; |
| 1639 | dev->vpic.brightness = 128 << 8; |
| 1640 | dev->vpic.contrast = 192 << 8; |
| 1641 | dev->vpic.whiteness = 128 << 8; /* This one isn't used */ |
| 1642 | dev->vpic.depth = 16; |
| 1643 | dev->vpic.palette = VIDEO_PALETTE_YUV422; |
| 1644 | |
| 1645 | /* compute alternate max packet sizes */ |
| 1646 | uif = dev->udev->actconfig->interface[0]; |
| 1647 | dev->alt_max_pkt_size[0] = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1648 | for (i = 1; i <= EM28XX_MAX_ALT && i < uif->num_altsetting ; i++) { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1649 | u16 tmp = |
| 1650 | le16_to_cpu(uif->altsetting[i].endpoint[1].desc. |
| 1651 | wMaxPacketSize); |
| 1652 | dev->alt_max_pkt_size[i] = |
| 1653 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); |
| 1654 | } |
| 1655 | |
| 1656 | #ifdef CONFIG_MODULES |
| 1657 | /* request some modules */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1658 | if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114) |
Mauro Carvalho Chehab | 91cad0f | 2005-11-08 21:38:13 -0800 | [diff] [blame] | 1659 | request_module("saa711x"); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1660 | if (dev->decoder == EM28XX_TVP5150) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1661 | request_module("tvp5150"); |
| 1662 | if (dev->has_tuner) |
| 1663 | request_module("tuner"); |
| 1664 | if (dev->tda9887_conf) |
| 1665 | request_module("tda9887"); |
| 1666 | #endif |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1667 | errCode = em28xx_config(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1668 | if (errCode) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1669 | em28xx_errdev("error configuring device\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1670 | kfree(dev); |
| 1671 | return -ENOMEM; |
| 1672 | } |
| 1673 | |
| 1674 | down(&dev->lock); |
| 1675 | /* register i2c bus */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1676 | em28xx_i2c_register(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1677 | |
| 1678 | /* Do board specific init and eeprom reading */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1679 | em28xx_card_setup(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1680 | |
| 1681 | /* configure the device */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1682 | em28xx_config_i2c(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1683 | |
| 1684 | up(&dev->lock); |
| 1685 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1686 | errCode = em28xx_config(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1687 | |
| 1688 | #ifdef CONFIG_MODULES |
| 1689 | if (dev->has_msp34xx) |
| 1690 | request_module("msp3400"); |
| 1691 | #endif |
| 1692 | /* allocate and fill v4l2 device struct */ |
| 1693 | dev->vdev = video_device_alloc(); |
| 1694 | if (NULL == dev->vdev) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1695 | em28xx_errdev("cannot allocate video_device.\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1696 | kfree(dev); |
| 1697 | return -ENOMEM; |
| 1698 | } |
| 1699 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1700 | dev->vdev->type = VID_TYPE_CAPTURE; |
| 1701 | if (dev->has_tuner) |
| 1702 | dev->vdev->type |= VID_TYPE_TUNER; |
| 1703 | dev->vdev->hardware = 0; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1704 | dev->vdev->fops = &em28xx_v4l_fops; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1705 | dev->vdev->minor = -1; |
| 1706 | dev->vdev->dev = &dev->udev->dev; |
| 1707 | dev->vdev->release = video_device_release; |
| 1708 | snprintf(dev->vdev->name, sizeof(dev->vdev->name), "%s", |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1709 | "em28xx video"); |
| 1710 | list_add_tail(&dev->devlist,&em28xx_devlist); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1711 | |
| 1712 | /* register v4l2 device */ |
| 1713 | down(&dev->lock); |
| 1714 | if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1))) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1715 | em28xx_errdev("unable to register video device (error=%i).\n", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1716 | retval); |
| 1717 | up(&dev->lock); |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 1718 | list_del(&dev->devlist); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1719 | video_device_release(dev->vdev); |
| 1720 | kfree(dev); |
| 1721 | return -ENODEV; |
| 1722 | } |
| 1723 | if (dev->has_msp34xx) { |
| 1724 | /* Send a reset to other chips via gpio */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1725 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1726 | udelay(2500); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1727 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1728 | udelay(2500); |
| 1729 | |
| 1730 | } |
| 1731 | video_mux(dev, 0); |
| 1732 | |
| 1733 | up(&dev->lock); |
| 1734 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1735 | em28xx_info("V4L2 device registered as /dev/video%d\n", |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1736 | dev->vdev->minor); |
| 1737 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1738 | return 0; |
| 1739 | } |
| 1740 | |
| 1741 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1742 | * em28xx_usb_probe() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1743 | * checks for supported devices |
| 1744 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1745 | static int em28xx_usb_probe(struct usb_interface *interface, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1746 | const struct usb_device_id *id) |
| 1747 | { |
| 1748 | const struct usb_endpoint_descriptor *endpoint; |
| 1749 | struct usb_device *udev; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1750 | struct em28xx *dev = NULL; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1751 | int retval = -ENODEV; |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 1752 | int model,i,nr,ifnum; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1753 | |
| 1754 | udev = usb_get_dev(interface_to_usbdev(interface)); |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 1755 | ifnum = interface->altsetting[0].desc.bInterfaceNumber; |
| 1756 | |
Mauro Carvalho Chehab | 91cad0f | 2005-11-08 21:38:13 -0800 | [diff] [blame] | 1757 | |
| 1758 | /* Don't register audio interfaces */ |
| 1759 | if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1760 | em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n", |
Mauro Carvalho Chehab | 91cad0f | 2005-11-08 21:38:13 -0800 | [diff] [blame] | 1761 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
| 1762 | ifnum, |
| 1763 | interface->altsetting[0].desc.bInterfaceClass); |
| 1764 | return -ENODEV; |
| 1765 | } |
| 1766 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1767 | em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n", |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 1768 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
| 1769 | ifnum, |
| 1770 | interface->altsetting[0].desc.bInterfaceClass); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1771 | |
Mauro Carvalho Chehab | d5e5265 | 2005-11-08 21:37:32 -0800 | [diff] [blame] | 1772 | endpoint = &interface->cur_altsetting->endpoint[1].desc; |
| 1773 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1774 | /* check if the the device has the iso in endpoint at the correct place */ |
| 1775 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != |
| 1776 | USB_ENDPOINT_XFER_ISOC) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1777 | em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1778 | return -ENODEV; |
| 1779 | } |
| 1780 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1781 | em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1782 | return -ENODEV; |
| 1783 | } |
| 1784 | |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1785 | model=id->driver_info; |
| 1786 | nr=interface->minor; |
| 1787 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1788 | if (nr>EM28XX_MAXBOARDS) { |
| 1789 | printk ("em28xx: Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS); |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1790 | return -ENOMEM; |
| 1791 | } |
| 1792 | |
| 1793 | /* allocate memory for our device state and initialize it */ |
| 1794 | dev = kmalloc(sizeof(*dev), GFP_KERNEL); |
| 1795 | if (dev == NULL) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1796 | em28xx_err(DRIVER_NAME ": out of memory!\n"); |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1797 | return -ENOMEM; |
| 1798 | } |
| 1799 | memset(dev, 0, sizeof(*dev)); |
| 1800 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1801 | snprintf(dev->name, 29, "em28xx #%d", nr); |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1802 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1803 | if ((card[nr]>=0)&&(card[nr]<em28xx_bcount)) |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1804 | model=card[nr]; |
| 1805 | |
| 1806 | if ((model==EM2800_BOARD_UNKNOWN)||(model==EM2820_BOARD_UNKNOWN)) { |
| 1807 | printk( "%s: Your board has no eeprom inside it and thus can't\n" |
| 1808 | "%s: be autodetected. Please pass card=<n> insmod option to\n" |
| 1809 | "%s: workaround that. Redirect complaints to the vendor of\n" |
| 1810 | "%s: the TV card. Best regards,\n" |
| 1811 | "%s: -- tux\n", |
| 1812 | dev->name,dev->name,dev->name,dev->name,dev->name); |
| 1813 | printk("%s: Here is a list of valid choices for the card=<n> insmod option:\n", |
| 1814 | dev->name); |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1815 | for (i = 0; i < em28xx_bcount; i++) { |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1816 | printk("%s: card=%d -> %s\n", |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1817 | dev->name, i, em28xx_boards[i].name); |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 1818 | } |
| 1819 | } |
| 1820 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1821 | /* allocate device struct */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1822 | retval = em28xx_init_dev(&dev, udev, nr, model); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1823 | if (retval) |
| 1824 | return retval; |
| 1825 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1826 | em28xx_info("Found %s\n", em28xx_boards[model].name); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1827 | |
| 1828 | /* save our data pointer in this interface device */ |
| 1829 | usb_set_intfdata(interface, dev); |
| 1830 | return 0; |
| 1831 | } |
| 1832 | |
| 1833 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1834 | * em28xx_usb_disconnect() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1835 | * called when the device gets diconencted |
| 1836 | * video device will be unregistered on v4l2_close in case it is still open |
| 1837 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1838 | static void em28xx_usb_disconnect(struct usb_interface *interface) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1839 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1840 | struct em28xx *dev = usb_get_intfdata(interface); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1841 | usb_set_intfdata(interface, NULL); |
| 1842 | |
| 1843 | if (!dev) |
| 1844 | return; |
| 1845 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1846 | down_write(&em28xx_disconnect); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1847 | |
| 1848 | down(&dev->lock); |
| 1849 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1850 | em28xx_info("disconnecting %s\n", dev->vdev->name); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1851 | |
| 1852 | wake_up_interruptible_all(&dev->open); |
| 1853 | |
| 1854 | if (dev->users) { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1855 | em28xx_warn |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1856 | ("device /dev/video%d is open! Deregistration and memory " |
| 1857 | "deallocation are deferred on close.\n", dev->vdev->minor); |
| 1858 | dev->state |= DEV_MISCONFIGURED; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1859 | em28xx_uninit_isoc(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1860 | dev->state |= DEV_DISCONNECTED; |
| 1861 | wake_up_interruptible(&dev->wait_frame); |
| 1862 | wake_up_interruptible(&dev->wait_stream); |
| 1863 | } else { |
| 1864 | dev->state |= DEV_DISCONNECTED; |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1865 | em28xx_release_resources(dev); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1866 | } |
| 1867 | |
| 1868 | up(&dev->lock); |
| 1869 | |
| 1870 | if (!dev->users) |
| 1871 | kfree(dev); |
| 1872 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1873 | up_write(&em28xx_disconnect); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1874 | |
| 1875 | } |
| 1876 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1877 | static struct usb_driver em28xx_usb_driver = { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1878 | .owner = THIS_MODULE, |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1879 | .name = "em28xx", |
| 1880 | .probe = em28xx_usb_probe, |
| 1881 | .disconnect = em28xx_usb_disconnect, |
| 1882 | .id_table = em28xx_id_table, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1883 | }; |
| 1884 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1885 | static int __init em28xx_module_init(void) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1886 | { |
| 1887 | int result; |
| 1888 | |
| 1889 | printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1890 | (EM28XX_VERSION_CODE >> 16) & 0xff, |
| 1891 | (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1892 | #ifdef SNAPSHOT |
| 1893 | printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", |
| 1894 | SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); |
| 1895 | #endif |
| 1896 | |
| 1897 | /* register this driver with the USB subsystem */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1898 | result = usb_register(&em28xx_usb_driver); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1899 | if (result) |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1900 | em28xx_err(DRIVER_NAME |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1901 | " usb_register failed. Error number %d.\n", result); |
| 1902 | |
| 1903 | return result; |
| 1904 | } |
| 1905 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1906 | static void __exit em28xx_module_exit(void) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1907 | { |
| 1908 | /* deregister this driver with the USB subsystem */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1909 | usb_deregister(&em28xx_usb_driver); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1910 | } |
| 1911 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame^] | 1912 | module_init(em28xx_module_init); |
| 1913 | module_exit(em28xx_module_exit); |